Compare/Jamba 1.5 Large vs GPT-4.1

Jamba 1.5 LargevsGPT-4.1

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

AI21 Labs

Jamba 1.5 Large

Input
$2/M
Output
$8/M
Speed
TTFT
OpenAI

GPT-4.1

Input
$2/M
Output
$8/M
Speed
102 tok/s
TTFT
0.53s

Winner by Category

Cheaper
Tie
Faster (tok/s)
GPT-4.1
Lower Latency
Jamba 1.5 Large
Benchmarks (0-12)
GPT-4.1

Pricing Comparison

MetricJamba 1.5 LargeGPT-4.1
Input ($/M tokens)$2$2
Output ($/M tokens)$8$8
Cost for 1M input + 100K output tokens:
Jamba 1.5 Large$2.80
GPT-4.1$2.80

Speed Comparison

Output Speed (tokens/s) — higher is better
Jamba 1.5 Large
GPT-4.1
102 tok/s
Time to First Token (seconds) — lower is better
Jamba 1.5 Large
GPT-4.1
0.53s

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
10.726.3
Coding Index
21.8
Math Index
34.7
GPQA Diamond
42.7%66.6%
MMLU-Pro
57.2%80.6%
LiveCodeBench
14.3%45.7%
AIME 2025
34.7%
MATH-500
60.6%91.3%
Humanity's Last Exam
4.0%4.6%
SciCode
16.3%38.1%
IFBench
43.0%
TerminalBench
13.6%
Jamba 1.5 Large0 wins
12 winsGPT-4.1

Frequently Asked Questions

Which is cheaper, Jamba 1.5 Large or GPT-4.1?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

GPT-4.1 wins 12 out of 12 benchmarks compared to 0 for Jamba 1.5 Large. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

GPT-4.1 generates tokens faster at 102 tok/s vs 0 tok/s. Jamba 1.5 Large also has lower time-to-first-token (0.00s vs 0.53s).

When should I use Jamba 1.5 Large vs GPT-4.1?

Choose based on your priorities: both are similarly priced, GPT-4.1 for stronger benchmark performance, and GPT-4.1 for faster generation. For latency-sensitive apps, check the TTFT comparison above.